Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=106 and σ=27. (Npte: Please use at least 3 decimal places for your z-score...


Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=106 and σ=27. (Npte: Please use at least 3 decimal places for your z-score for all parts.)


(a) What proportion of children aged 13 to 15 years old have scores on this test above 88 ? (NOTE: Please enter your answer in decimal form. For example, 45.23% should be entered as 0.4523.)
Answer:


(b) Enter the score which marks the lowest 30 percent of the distribution.
Answer:


(c) Enter the score which marks the highest 10 percent of the distribution.
Answer:




Jun 10, 2022
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